Patents by Inventor Michael Sieweke

Michael Sieweke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260041734
    Abstract: The present invention relates to an agonist of the colony stimulating factor 1 receptor (CSF1R) for use in the prophylaxis and/or treatment of viral infections in states of immunosuppression in a subject and to pharmaceutical compositions comprising said CSF1R agonist. According to the invention, said subject is in a state of immunosuppression, when in said subject the absolute number of CD14+, CD16+ und HLA-DR+ expressing monocytes is reduced when compared to a healthy control subject. The invention is based on the finding that CSF1R agonist treatment, such as M-CSF treatment, induces an integrated multistep differentiation cascade that culminated in increased NK cell activation protecting HCT recipients from a viral infection. A mechanism of action by which M-CSF-induced myelopoiesis can rapidly reconstitute antiviral activity under immunosuppressed conditions was identified, which provides a general paradigm to boost innate antiviral immune response.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 12, 2026
    Inventors: Michael SIEWEKE, Prashanth Kumar KANDALLA, Ludwig ENGLMEIER
  • Publication number: 20250283042
    Abstract: The invention provides human phagocytic cells which are not tumorigenic, yet still capable of cell division ex-vivo, such as in cell culture. A culture containing these cells can be expanded manyfold, that is the cell number in such a culture can be increased by a factor of 10 or more. The cells show characteristics of functional phagocytes in a differentiated state and are capable to alleviate pathological defects in in vivo models.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 11, 2025
    Inventors: Michael SIEWEKE, Clara Jana Lui ELENDNER, Jeremy FAVRET, Sandrine SARRAZIN
  • Publication number: 20250009794
    Abstract: The present invention to the use of human term placenta as a source of HLA-matched cells for use in cell therapy, in particular wherein the cells are non-maternal macrophages. The invention also relates to two different sets of isolated placental macrophages of embryonic origin, which have been newly discovered and identified as being useful for macrophage cell therapy, and to methods to isolate these cells from human term placenta.
    Type: Application
    Filed: November 23, 2022
    Publication date: January 9, 2025
    Inventors: Michael SIEWEKE, Prashanth Kumar KANDALLA
  • Publication number: 20240197777
    Abstract: The present invention relates to a human macrophage for use in cancer therapy, said human macrophage comprising at least one mutation in both alleles of a chromosomal gene, wherein said macrophage is resistant to tumor-induced reprogramming and/or shows anti-tumor activity. The human macrophage of the invention demonstrates typical markers of an M1 macrophage, such as the presence of MHC class II proteins, even after having been cultured in an environment which promotes M2-polarization, such as in the presence of M-CSF and/or IL4 and/or IL13. The invention also relates to a collection of human macrophages of the invention, to their use in medicine, and in particular to their use in cancer therapy such as the treatment of solid tumors as a preferred example.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 20, 2024
    Inventors: Michael SIEWEKE, ClaraJana Lui ELENDNER, Jeremy FAVRET, Sandrine SARAZIN, Lahmar QODS
  • Publication number: 20240000833
    Abstract: The present invention relates to methods for expanding a population of alveolar macrophages in a long term culture. In particular, an object of the present invention relates to a method of expanding a population of alveolar macrophages in a long term culture comprising culturing the population of alveolar macrophages in a culture medium supplemented with an amount of GM-CSF.
    Type: Application
    Filed: April 28, 2023
    Publication date: January 4, 2024
    Inventors: Michael SIEWEKE, Kaaweh MOLAWI, Laufey GEIRSDOTTIR
  • Patent number: 10709762
    Abstract: The invention relates to methods and compositions comprising a macrophage colony stimulating factor (M-CSF) polypeptide or an agonist of the M-CSF receptor for preventing or treating myeloid cytopenia and related complications (such as infections) in a patient in need thereof (such as a patient undergoing hematopoietic stem cell transplantation).
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: July 14, 2020
    Assignees: INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE D'AIX-MARSEILLE
    Inventor: Michael Sieweke
  • Publication number: 20180360877
    Abstract: The present invention relates to methods for expanding a population of alveolar macrophages in a long term culture. In particular, an object of the present invention relates to a method of expanding a population of alveolar macrophages in a long term culture comprising culturing the population of alveolar macrophages in a culture medium supplemented with an amount of GM-CSF.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 20, 2018
    Inventors: Michael SIEWEKE, Kaaweh MOLAWI, Laufey GEIRSDOTTIR
  • Publication number: 20160304584
    Abstract: The present invention relates to MafB mutants and uses thereof for research, screening and therapeutic purposes. In particular, the present invention relates to a MafB mutant polypeptide comprising the sequence as set forth in SEQ ID NO: 1 or 2 or a function conservative variant thereof wherein the glutaminic acid residue at position 269 has been deleted or substituted with a basic amino acid. The present invention also relates to a MafB mutant polypeptide comprising the sequence as set forth in SEQ ID NO: 1 or 2 or a function conservative variant thereof wherein the valine residue at position 277 has been deleted or substituted with a polar amino acid.
    Type: Application
    Filed: December 3, 2014
    Publication date: October 20, 2016
    Inventors: Michael SIEWEKE, Vivian POGENBERG, Matthias WILMANNS, Larissa CONSANI TEXTOR, Laurent VANHILLE
  • Publication number: 20160045567
    Abstract: The invention relates to methods and compositions comprising a macrophage colony stimulating factor (M-CSF) polypeptide or an agonist of the M-CSF receptor for preventing or treating myeloid cytopenia and related complications (such as infections) in a patient in need thereof (such as a patient undergoing hematopoietic stem cell transplantation).
    Type: Application
    Filed: April 9, 2014
    Publication date: February 18, 2016
    Inventor: Michael SIEWEKE
  • Patent number: 9175265
    Abstract: Mouse or human hematopoietic cells are transduced in vitro with one or more vectors encoding c-Myc and Klf4 genes, to overexpress both c-Myc and Klf4. The transduced cells produce self-renewing populations of macrophages, monocytes, monocyte-derived macrophages, B lymphocytes or erythroid cells. The self-renewing cell populations may include a pharmaceutical composition.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: November 3, 2015
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Universite de la Mediterranee (Aix-Marseille II)
    Inventor: Michael Sieweke
  • Patent number: 9125869
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signalling.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 8, 2015
    Assignees: INSERM (Institut National de la Sante et de la Recherche Medicale), Centre National de la Recherche Scientifique (CNRS)
    Inventor: Michael Sieweke
  • Publication number: 20140127268
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signalling.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 8, 2014
    Applicant: INSERM (Institut National de la Sante et de la Recherche Medicale)
    Inventor: Michael Sieweke
  • Patent number: 8691964
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signaling.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: April 8, 2014
    Assignee: INSERM (Institut Naitonal de la Sante et de la Recherche Medicale)
    Inventor: Michael Sieweke
  • Patent number: 8574903
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signaling.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: November 5, 2013
    Assignee: Inserm (Institut Natuonal de la Santa et de la Recherche Medicale)
    Inventor: Michael Sieweke
  • Publication number: 20120156179
    Abstract: The present invention relates to a method for inducing proliferation of functionally differentiated somatic cells comprising a step of activating expression of a Myc family gene and a KIf family gene in said cells or contacting said cells with a Myc family protein and a KIf family protein.
    Type: Application
    Filed: July 8, 2010
    Publication date: June 21, 2012
    Inventor: Michael Sieweke
  • Publication number: 20120122207
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signaling.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 17, 2012
    Applicant: INSERM (Institute National de la Sante et de Recherche Medicale)
    Inventor: Michael Sieweke
  • Publication number: 20100003272
    Abstract: The invention relates to an ex vivo method for expanding monocytes, macrophages or dendritic cells, which method comprises inhibiting the expression or the activity of MafB and c-Maf in monocytes, macrophages or dendritic cells; and expanding the cells in the presence of at least one cytokine or an agonist of cytokine receptor signaling.
    Type: Application
    Filed: January 10, 2008
    Publication date: January 7, 2010
    Applicant: INSERM (Institut National de la Sante et de la Recherche Medicale)
    Inventor: Michael Sieweke
  • Publication number: 20070083720
    Abstract: The present invention finds the optimum organization of compiled code within an application to ensure maximal cache efficiency. A configuration file specifies predefined cache, optimization, and application parameters. The cache parameters include a cache size, cache line size, set associativity, address-to-cache-line mapping algorithm, and set replacement algorithm. The optimization parameters specify the minimum acceptable efficiency level. The application parameters include a list of object modules and functions within those modules. All possible orderings of the modules are stepped through to determine where the specified functions fall within the cache given the location of the function within the module. The function locations in each permutation of the orderings are analyzed to find a solution that matches or beats the optimization parameters. In an embodiment, a front-end analysis program (“tool”) and a back-end processing stage, usually related to a linker, are provided.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 12, 2007
    Applicant: Broadcom Corporation
    Inventors: David PULLEN, Michael Sieweke